ATE68837T1 - METHOD AND DEVICE FOR THE TREATMENT OF FIBER SUSPENSIONS. - Google Patents

METHOD AND DEVICE FOR THE TREATMENT OF FIBER SUSPENSIONS.

Info

Publication number
ATE68837T1
ATE68837T1 AT88112317T AT88112317T ATE68837T1 AT E68837 T1 ATE68837 T1 AT E68837T1 AT 88112317 T AT88112317 T AT 88112317T AT 88112317 T AT88112317 T AT 88112317T AT E68837 T1 ATE68837 T1 AT E68837T1
Authority
AT
Austria
Prior art keywords
pulp
treatment
treating
fiber suspensions
medium consistency
Prior art date
Application number
AT88112317T
Other languages
German (de)
Inventor
Kaj Henricson
Seppo Kokkonen
Olavi Pikka
Harri Qvintus
Erkki Ruuskanen
Erkki Savolainen
Original Assignee
Ahlstroem Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8525391&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE68837(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ahlstroem Oy filed Critical Ahlstroem Oy
Application granted granted Critical
Publication of ATE68837T1 publication Critical patent/ATE68837T1/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D1/00—Methods of beating or refining; Beaters of the Hollander type
    • D21D1/20—Methods of refining
    • D21D1/40—Washing the fibres

Abstract

The object of the present invention is a method and apparatus for treating medium consistency pulp in connection with different treatment apparatuses, such as washers. According to the prior art the treatment of pulp, for example, the washing process, begins at a low consistency, approximately 1 - 3 %. In other words it is always necessary to dilute pulp before washing, whereby the water consumption of the plant increases and the need of power in, for example, pumping and in the treatment generally increases. With the method and apparatus of the invention it is possible to treat medium consistency pulp (8 to 20%), because the feeding apparatus (20, 30, 40) is able to spread the pulp as an even web on the treating apparatus 1.
AT88112317T 1987-11-11 1988-07-29 METHOD AND DEVICE FOR THE TREATMENT OF FIBER SUSPENSIONS. ATE68837T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI874967A FI81136C (en) 1987-11-11 1987-11-11 Method and apparatus for treating pulp
EP88112317A EP0315737B1 (en) 1987-11-11 1988-07-29 Method and apparatus for treating pulp

Publications (1)

Publication Number Publication Date
ATE68837T1 true ATE68837T1 (en) 1991-11-15

Family

ID=8525391

Family Applications (1)

Application Number Title Priority Date Filing Date
AT88112317T ATE68837T1 (en) 1987-11-11 1988-07-29 METHOD AND DEVICE FOR THE TREATMENT OF FIBER SUSPENSIONS.

Country Status (7)

Country Link
US (2) US4952314A (en)
EP (1) EP0315737B1 (en)
JP (1) JPH01132890A (en)
AT (1) ATE68837T1 (en)
CA (1) CA1325352C (en)
DE (1) DE3865807D1 (en)
FI (1) FI81136C (en)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5192454A (en) * 1987-11-05 1993-03-09 A. Ahlstrom Corporation Method for treating fiber suspension
US5227058A (en) * 1990-02-13 1993-07-13 A. Ahlstrom Corporation Apparatus for removing liquid from the thickeners, filters, and washers
SE465967B (en) * 1990-04-11 1991-11-25 Celleco Ab PROCEDURE AND DEVICE FOR SEPARATION OF A FIBER SUSPENSION
US5046338A (en) * 1990-06-13 1991-09-10 Ingersoll-Rand Company Multiphase pulp washer
US5319902A (en) * 1991-06-12 1994-06-14 A. Ahlstrom Mass tower and method of making the same
FI88940C (en) * 1991-06-17 1993-07-26 Sunds Porin Tehtaat Oy DRUMTVAETTARE
SE507486C3 (en) * 1991-09-12 1998-07-13 Valmet Automation Kajaani Ltd Method and apparatus for saturating fiber properties with near-infrared spectroscopy
US5901853A (en) * 1994-06-08 1999-05-11 Singleton, Jr.; Robert S. Apparatus and method for extracting impurities from a pulpous slurry
US5791491A (en) * 1994-06-08 1998-08-11 Singleton, Jr.; Robert Apparatus and method for extracting impurities from a pulpous slurry
US5492224A (en) * 1994-06-08 1996-02-20 Singleton, Jr.; Robert Apparatus and method for extracting impurities from a pulpous slurry
SE504471C2 (en) * 1995-06-12 1997-02-17 Kvaerner Pulping Tech Drum filter supported by carrier rolls for washing fiber material
US5851350A (en) * 1995-12-27 1998-12-22 A. Ahlstrom Corporation Method and apparatus for pumping cellulose pulp
US6342159B1 (en) 1997-01-29 2002-01-29 Ensolve Biosystems, Inc. Shipboard biomechanical oil water separator
US5807485A (en) * 1997-01-29 1998-09-15 Ensolve Biosystems, Inc. Shipboard fixed-bed bioreactor system
US6004468A (en) * 1998-07-17 1999-12-21 Barbulescu; Adrian Serial drum apparatus and method for processing wet material
SE512877E (en) * 1999-06-04 2005-02-02 Kvaerner Pulping Tech Fibrous dewatering device provided with a pulp inlet with pressure equalizing section
DE102004033328A1 (en) * 2004-07-09 2006-02-09 Bhs-Sonthofen Gmbh Filter with solid resuspension
SE528721C2 (en) * 2005-06-03 2007-01-30 Metso Paper Inc Apparatus and method for sealing adjustment in a washing device for treating cellulose pulp
SE528729E (en) * 2005-06-03 2015-07-08 Metso Paper Inc Device for treating cellulose pulp
SE528722C2 (en) * 2005-06-03 2007-01-30 Metso Paper Inc Apparatus for treating cellulose pulp in a washing apparatus provided with a reinforcing sheath
SE531152C2 (en) * 2005-12-22 2009-01-07 Metso Paper Inc Washing machine for washing pulp with rotating flow in the propagation zone
SE530586C2 (en) * 2006-11-30 2008-07-08 Metso Paper Inc Method and unit for sealing adjustment in a washing device and washing device comprising sealing adjustment unit
SE532366C2 (en) * 2008-04-23 2009-12-22 Metso Paper Inc Distribution device for dispensing cellulose pulp
DE102010038417A1 (en) * 2010-07-26 2012-01-26 Huber Se Apparatus and method for removing screenings from a liquid

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL84387C (en) * 1949-07-26
US2723194A (en) * 1952-05-06 1955-11-08 Eleanor G Birdseye Process of separating bagasse pith and fiber
US3086717A (en) * 1957-07-22 1963-04-23 Cons Paper Corp Ltd Separation of bark components
US3082874A (en) * 1959-05-12 1963-03-26 Beloit Iron Works Stock screen
US3296066A (en) * 1963-11-13 1967-01-03 Black Clawson Co Headbox for papermaking machine and stock distributor thereto
US3456793A (en) * 1966-01-24 1969-07-22 Beloit Corp Dual pressure stock screen
FR2002382A1 (en) * 1968-02-22 1969-10-17 Voith
US3508651A (en) * 1968-04-19 1970-04-28 Hooper & Co Ltd S W Method and apparatus for screening pulp
GB1228385A (en) * 1968-07-04 1971-04-15
US3823063A (en) * 1972-08-11 1974-07-09 Allis Chalmers Method and system for pulp stock supply
SE385028B (en) * 1974-09-10 1976-05-31 S T Gloersen WAY TO EQUALIZE THE MOISTURE CONTENT IN POROSA MATERIAL, T.EX. FIBER MATERIAL
US4014736A (en) * 1974-12-17 1977-03-29 The Ontario Paper Company Limited Process for treating a slurry of cellulosic material
FI62871B (en) * 1977-05-16 1982-11-30 Ahlstroem Oy FOERFARANDE FOER PUMPNING AV EN FIBERSUSPENSION
FI56564C (en) * 1979-01-26 1980-02-11 Enso Gutzeit Oy ANORDNING FOER TVAETTNING AV MASS
US4273562A (en) * 1979-10-01 1981-06-16 A. Ahlstrom Osakeyhtio Method and apparatus for pumping gaseous liquids and separating the gaseous components therefrom
SE443383C (en) * 1981-01-14 1987-07-14 Mo Och Domsjoe Ab PROCEDURE FOR WASHING CELLULOSAMASSA
JPS6040558A (en) * 1983-08-12 1985-03-02 Nec Corp Ejecting mechanism of disk cartridge
US4632729A (en) * 1984-05-01 1986-12-30 Laakso Oliver A Chip presteaming and air washing
US4596631A (en) * 1984-05-08 1986-06-24 Kamyr, Inc. Method of removing latency from medium consistency pulps by pumping the pulp
FI84844C (en) * 1985-01-24 1996-03-29 Ahlstroem Oy Method and apparatus for distributing and uniting streams of highly consistent fiber suspensions
FI71961C (en) * 1985-10-31 1987-03-09 Enso Gutzeit Oy Device for washing cellulose.
SE454187B (en) * 1985-10-31 1988-04-11 Kamyr Ab FIBER MATERIAL TREATMENT APPLIANCE

Also Published As

Publication number Publication date
DE3865807D1 (en) 1991-11-28
FI874967A0 (en) 1987-11-11
FI81136C (en) 1990-09-10
EP0315737A1 (en) 1989-05-17
EP0315737B1 (en) 1991-10-23
FI81136B (en) 1990-05-31
CA1325352C (en) 1993-12-21
US4952314A (en) 1990-08-28
JPH01132890A (en) 1989-05-25
US5120398A (en) 1992-06-09
FI874967A (en) 1989-05-12

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